.mainContent {
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    row-gap: 40px;
    column-gap: 24px;
    width: 100%;
}

.imgSingle {
    aspect-ratio: 3/4;
    max-width: 100%;
}

.imgSingle > img {
    object-fit: cover;
}

.mainContent {
    max-width: 1024px !important;
}